Streamlight Protac Rail Mount 1L-X Pro Rifle Weapon Light CR123A 500 Lumens Black
$109.21
The Streamlight BLK Tactical Long Gun Light delivers a powerful beam to illuminate your target. Easily mounts to your rifle or shotgun’s rail system.
30 in stock
The ProTac Rail Mount 1L-X Pro is a compact multi-fuel high-output tactical light designed for short-barreled rifles carbines and submachine guns. Featuring the innovative Jack-Cap tail cap this light offers dual operational redundancy — choose push-button activation or remote pressure switch control for ultimate flexibility. The integrated port ensures secure attachment of the remote pressure switch while the rail clamp system fits MIL-STD-1913 Picatinny rails. It also includes an M-LOK mount for alternative mounting options on M-LOK compatible rail systems. This tactical light delivers high lumen output for superior visibility in low-light environments. It is perfect for law enforcement military and tactical applications.
- Multi-Fuel: Uses (1) Streamlight SL-B9 protected Li-Ion USB rechargeable battery pack; also accepts (1) CR123A lithium batteries
- TEN-TAP Programming Allows for Selection of Three Different Operating Programs:
1) High/Strobe (Factory Default) 2) High Only 3) Low/High- High: 850 lumens; 30000 candela; 346m beam distance; 0.5 hours (SL-B9). 500 lumens; 18000 candela; 268m beam distance; 1.75 hours (CR123A)
- Low: 100 lumens; 3400 candela; 117m beam distance; 4.5 hours (SL-B9). 100 lumens; 3400 candela; 117m beam distance; 6.5 hours (CR123A)
- Strobe: 1.25 hours (SL-B9); 2.5 hours (CR123A)
- Mounts directly to guns with MIL-STD-1913 (Picatinny) rails or M-LOK and M-LOK compatible rails
- Jack-Cap tail cap offers push-button switch and port for a remote pressure switch.
- Multi-function push-button tail switch with momentary and latching constant-on operations. Momentary only remote switch included
- One-handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching from the firearm
- 6000 Series machined aircraft aluminum with black anodized finish
- High-temperature shock-mounted anti-reflective coated impact-resistant BOROFLOAT glass.
- Extensively live fire tested impact-resistant construction
- IP67 rated with standard push-button switch installed; waterproof to 1 meter for 30 minutes
- IP54 rated with the remote pressure switch installed for water-resistant operation
- Weight: 5.5 oz (155.9g) with (1) CR123A battery; 5.6 oz (158.8g) with (1) SL-B9 rechargeable battery pack
- Streamlight's Limited Lifetime Warranty
| Weight | 0.691 lbs |
|---|---|
| Dimensions | 7.150 × 4.000 × 2.600 in |
| Manufacturer | Streamlight |
| Finish | durable |
| Weight | not specified |
| Material | aircraft-grade aluminum |
| Compatible With | rifles and shotguns |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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